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Rev: 1 • Nov 23, 2021, 12:00 PMET MALWARE Dridex CnC Returning Email Addresses - Possible Spam Module
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Dridex CnC Returning Email Addresses - Possible Spam Module"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"@"; content:"|22|,|22|"; pcre:"/^\x7b(?:\x22[a-z0-9_\-\.]+@[a-z0-9_\-\.]+\.[a-z]{2,10}\x22,){4}\x22[a-z0-9_\-\.]+@[a-z0-9_\-\.]+\.[a-z]{2,10}\x22\x7d$/"; flowbits:isset,ET.Dridex.Email.Sets.1; classtype:command-and-control; sid:2034534; rev:1; metadata:created_at 2021_11_23, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_23;)
Nov 23, 2021, 12:00 PM
Nov 23, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-malware.rules